SEDIMENTARY ROCKS TEXTURES
CLASTIC
Consisting of broken and weathered fragments of pre-existing rocks and / or minerals and / or shell fragments, clastic rocks may have their individual components cemented together by calcite, iron oxide, etc.
CRYSTALLINE
Consisting of crystals that have been precipitated from solution, which are locked together like the pieces of a three-dimensional jigsaw puzzle, thus giving the rock great stregnth without cementing material (eg., limestone).
ORGANIC
Mainly composed of well-preserved organic debris, such as plants, shells or bones (eg., coal, shelly limestone)
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